Include current vessel in Relay.potentialRelays
Include current vessel in Relay.potentialRelays

If the current vessel is a relay satellite, other vessels may have
communication paths that go through it.  If they do and the current
vessel isn't in the potentialRelays list, GetRelayVessel returns null
for it and LinkPath.SetLinks causes a NullReferenceException when it
tries to construct a Link with a null relayB.

Li0n-0/Antenna-Helper